Sodium perrhenate
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| Names | |
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| Other names
Sodium rhenate(VII) | |
| Identifiers | |
3D model (JSmol) |
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| ChEMBL | |
| ChemSpider | |
| ECHA InfoCard | 100.033.388 |
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PubChem CID |
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| RTECS number |
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| UNII | |
CompTox Dashboard (EPA) |
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| Properties | |
| NaReO4 | |
| Molar mass | 273.1866 g/mol |
| Appearance | white solid |
| Density | 5.39 g/cm3 |
| Melting point | 414 °C (777 °F; 687 K) |
| 103.3 g/100 mL (0 °C) 114.0 g/100 mL (25 °C)[1] 145.3 g/100 mL (30 °C) 173.0 g/100 mL (50 °C) | |
| Solubility | soluble in water (> 1130 g/L at 25 °C)[1] |
| Structure | |
| tetragonal | |
| Hazards | |
| Occupational safety and health (OHS/OSH): | |
Main hazards |
Oxidizer, skin/eyes irritation |
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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Sodium perrhenate (also known as sodium rhenate(VII)) is the inorganic compound with the formula NaReO4. It is a white salt that is soluble in water. It is a common precursor to other rhenium compounds. Its structure resembles that of sodium perchlorate and sodium permanganate.
It can be prepared by treatment of rhenium heptoxide with base or by ion exchange from the potassium salt.[2]
Sodium perrhenate can be prepared from rhenium metal with hydrogen peroxide in the presence of base.[3]
- 2 Re + 7 H2O2 + 2 NaOH → 2 NaReO4 + 8 H2O